2002 Honda Civic

Computer problem
2002 Honda Civic 4 cyl Front Wheel Drive Manual 100000 miles

My cel came on and I had a vent shut valve replaced at the dealer. After that they tell me there is still a leak and it might be another module.I am wondering how many modules there are, are they necessary will I do damage if not replaced?
February 13, 2009.

Hi beavercove,

What was the Diagnostic Trouble Code (DTC) and the part replaced?

When codes appears, you would fail inspection and some codes would cause higher fuel consumption etc. Whether it would cause any other damage would depend on what is at fault.

Feb 20, 2009.